Improvement in pile-sawing attachments for boats



H; VOGLER.

Improvement in Pile-Sawing Attachments for Boats.

No. 132,337. Patented Oct- 15, 1872.

minim: I mm: 50) %5 UNITED STATES PATENT OFFICE.-

HENBY VOGLER, OF BALTIMORE, MARYLAND.

IMPROVEMENT IN PILE-SAWING ATTACHMENTS FOR BOATS.

Specification forming part of Letters Patent No. 132,337, dated October 15, 1872.

a To all whom it may concern:

Be it known that I, HENRY VOGLER, of Baltimore, in the county of Baltimore and State of Maryland, have invented a Pile Sawing Machine, of which the following is a specification:

The invention consists in providing a pilesaw shaft with one removable bearing and a detachable cap on the other, so that it can be speedily reversed to cut off pile either at top or bottom. It also consists in a new mode of giving adjustment to the saw-shaft by means of a bearing threaded on the outside and working in a suitable female screw. It further consists in placing the saw between two springs, that enable it to play-on the shaft with the motions of the boat.

The drawing is a side elevation, showing my invention.

A represents a section of a boat, to whose side is attached the bearings a a a In these bearings is placed a revolving shaft, B, having wheel 0, that is rotated by a drive-wheel, D, on a shaft actuated within the boat. This vertical shaft B is also journaled at its upper end in a bearing, 1), and is provided with a pulley, E, whose belt F drives saw-shaft G. Near the end of rotary shaft G, {and between two oppositely-pressin g springs, g g, are placed the saw-clamps h h and saw H. This allows play to the saw up and down on shaft G to correspond to the motions of the boat. The saw-shaft G is arranged in the vertical frame I, that swings loosely on the shaft B, and thus is fed up tothe pile without moving the boat. J is a tubular screw that forms the upper bearing of shaft G and allows it to be adjusted to greater or less depth in the water. The upper bearing J is removable, and the lower bearing J 1 has a readily detachable cap, j, by the removal of which the shaft can be speedily reversed and the saw caused to out 01f theupper part of pile. In this case the bearing J is reversed and placed within J while J receives the saw-end of shaft G.

The operation is as follows: The boat having been brought into suitable position and anchored, the saw is held and fed to the pile at the desired depth by spring-pressure against frame I, or in any suitable manner, while the shaft G is rotated by belt F on a shaft, B, revolved by power within the boat.

I am aware that saws for cutting off piles have been used before on boats; but so far as I am aware I have never known a pile-saw that was reversible, vertically adjustable, or placed between springs.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. The saw-shaft G, provided with a detachable bearing, J, and a bearing, J with removv pose described.

HENRY VOGLER. Witnesses:

(has. A. Pnrrrr, Tnos. D. D. OURAND. 

